101220105200 has 60 divisors (see below), whose sum is σ = 243246943848. Its totient is φ = 40477113600.

The previous prime is 101220105193. The next prime is 101220105227. The reversal of 101220105200 is 2501022101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540214 + ... + 1604586.

Almost surely, 2^101220105200 is an apocalyptic number.

101220105200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220105200 is an abundant number, since it is smaller than the sum of its proper divisors (142026838648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101220105200 is a wasteful number, since it uses less digits than its factorization.

101220105200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68322 (or 68311 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 101220105200 its reverse (2501022101), we get a palindrome (103721127301).

The spelling of 101220105200 in words is "one hundred one billion, two hundred twenty million, one hundred five thousand, two hundred".